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Question: How to fix the behaviour of the LinearAlgebra[Eigenvectors] procedure in Maple18?

Question:How to fix the behaviour of the LinearAlgebra[Eigenvectors] procedure in Maple18?

esmerindobernardes 25 Maple 18
linearalgebra eigenvectors
February 24 2017
0

In Maple18.02:

Hso := Matrix(8, {(1, 4) = -x, (1, 6) = I*x, (2, 3) = x, (2, 5) = I*x, (3, 2) = x, (3, 5) = -I*z, (3, 8) = y, (4, 1) = -x, (4, 6) = I*z, (4, 7) = -y, (5, 2) = -I*x, (5, 3) = I*z, (5, 8) = -I*y, (6, 1) = -I*x, (6, 4) = -I*z, (6, 7) = -I*y, (7, 4) = -y, (7, 6) = I*y, (8, 3) = y, (8, 5) = I*y})

av, AV := LinearAlgebra[Eigenvectors](Hso)

Error, (in Polynomial:-Quadratic) type `truefalseFAIL` does not exist


This does not happen in Maple17.
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